温度和光周期对蜀柏毒蛾滞育的影响  

Effects of Temperature and Photoperiod on Diapause Ragulation of Parocneria orienta Chao(Lepidoptera:Lymantriidae)

作　　者：杨远亮 曾全 肖银波[1] 贾玉珍[1] 范成志[1] YANG Yuanliang;ZENG Quan;XIAO Yinbo;JIA Yuzhen;FAN Chengzhi(Institute of Forest Protection,Sichuan Academy of Forestry,Chengdu 610081,China)

机构地区：[1]四川省林业科学研究院森林保护研究所,四川成都610081

出　　处：《四川林业科技》2021年第5期16-21,共6页Journal of Sichuan Forestry Science and Technology

摘　　要：蜀柏毒蛾(Parocneria orienta Chao)是四川省柏木林最重要的食叶害虫,其越冬代有明显的滞育现象。本文通过人工诱导的方法研究了温度和光周期对蜀柏毒蛾1龄幼虫滞育诱导和解除的影响。结果表明:1.温度对蜀柏毒蛾的滞育率影响极显著(P<0.01),蜀柏毒蛾的滞育率随温度的降低逐渐升高;2.温度和光周期协同作用共同调控诱导蜀柏毒蛾幼虫进入滞育,温度起主要作用,光周期起辅助作用。环境温度低于25℃时,短光照能够促进诱导蜀柏毒蛾幼虫进入滞育,各光周期条件下蜀柏毒蛾幼虫的滞育率存在显著差异(P<0.05);3.25℃条件下,最有利于蜀柏毒蛾幼虫滞育解除。光周期对滞育解除作用不显著。Parocneria orienta Chao is considered to be the most destructive insect pest in cypress forest in Sichuan Province,and the overwintering generation had obvious diapause phenomenon.In this paper,effects of temperature and photoperiod on diapause induction and termination of Parocneria orienta Chao were studied through artificial induction method.The results showed that:(1)Temperature had a significant effect on diapause rate of Parocneria orienta Chao(P<0.01).The diapause rate gradually increased with the decrease of temperature;(2)Temperature and photoperiod had synergistic effect on the diapause of Parocneria orienta Chao.Temperature played a major role and photoperiod played a subsidiary role.When the ambient temperature was below than 25℃,short daylength light could promote the induction of diapause,and there were significant differences in diapause rate of Parocneria orienta Chao under different photoperiod conditions(P<0.05);(3)25℃condition was most favorable for diapause termination of Parocneria orienta Chao.Photoperiod had no significant effect on diapause termination.

关 键 词：蜀柏毒蛾 滞育 温度 光周期 

分 类 号：S763.42[农业科学—森林保护学]